john-users - Issues cracking an ssh key

Follow @Openwall on Twitter for new release announcements and other news

[<prev] [next>] [thread-next>] [day] [month] [year] [list]

Message-ID: <fa685ed1-d5dc-13cc-6f40-5649ededd5b3@gmail.com>
Date: Fri, 31 May 2019 11:46:36 -0500
From: Adam Lininger <arlininger@...il.com>
To: john-users@...ts.openwall.com
Subject: Issues cracking an ssh key

All,

I've got an encrypted ssh private key. I've managed to use ssh2john to
convert it and seem to have a crack (using --format=ssh-opencl).
However, the resulting passphrase doesn't decrypt the key. Instead
openssl errors out.

When I use --format=ssh and a fresh pot file, the same passphrase does
NOT appear to crack the key. What's odd is that the ssh format warns
about false positives and keeps going while ssh-opencl does not.

For context, I'm using bleeding-jumbo, commit
97cce637cdf3796fc2a1b28117dfad4272a9e99f.

Any thoughts?

Adam

Confused about mailing lists and their use? Read about mailing lists on Wikipedia and check out these guidelines on proper formatting of your messages.